Spoiler Alert: More details about The Mentalist 3x07

Currie Graham is coming back on The Mentalist playing the character of Walter Mashburn. We already saw Mashburn in Season 2 episode "Redline", and at the time Mashburn did show interest for Lisbon. Will he be the love interest rumored for Lisbon?We will find out soon!This information was confirmed by Jordan Harper - one of The Mentalist's writers on his twitter, where he wrote: "I've been told that the cat is out of the bag, so I guess it's okay to tell #thementalist fans that I said hey to Currie Graham yesterday."